How to use prime_docker_container method in localstack

Best Python code snippet using localstack_python

lambda_executors.py

Source:lambda_executors.py

...122        # set the invocation time123        self.function_invoke_times[func_arn] = time.time()124        # create/verify the docker container is running.125        LOG.debug('Priming docker container with runtime "%s" and arn "%s".', runtime, func_arn)126        container_info = self.prime_docker_container(runtime, func_arn, env_vars.items(), lambda_cwd)127        # Note: currently "docker exec" does not support --env-file, i.e., environment variables can only be128        # passed directly on the command line, using "-e" below. TODO: Update this code once --env-file is129        # available for docker exec, to better support very large Lambda events (very long environment values)130        exec_env_vars = ' '.join(['-e {}="${}"'.format(k, k) for (k, v) in env_vars.items()])131        if not command:132            command = '%s %s' % (container_info.entry_point, handler)133        # determine files to be copied into the container134        copy_command = ''135        event_file = os.path.join(lambda_cwd, LAMBDA_EVENT_FILE)136        if not has_been_invoked_before:137            # if this is the first invocation: copy the entire folder into the container138            copy_command = 'docker cp "%s/." "%s:/var/task"; ' % (lambda_cwd, container_info.name)139        elif os.path.exists(event_file):140            # otherwise, copy only the event file if it exists141            copy_command = 'docker cp "%s" "%s:/var/task"; ' % (event_file, container_info.name)142        cmd = (143            '%s'  # copy files command144            'docker exec'145            ' %s'  # env variables146            ' %s'  # container name147            ' %s'  # run cmd148        ) % (copy_command, exec_env_vars, container_info.name, command)149        return cmd150    def startup(self):151        self.cleanup()152        # start a process to remove idle containers153        self.start_idle_container_destroyer_interval()154    def cleanup(self, arn=None):155        if arn:156            self.function_invoke_times.pop(arn, None)157            return self.destroy_docker_container(arn)158        self.function_invoke_times = {}159        return self.destroy_existing_docker_containers()160    def prime_docker_container(self, runtime, func_arn, env_vars, lambda_cwd):161        """162        Prepares a persistent docker container for a specific function.163        :param runtime: Lamda runtime environment. python2.7, nodejs6.10, etc.164        :param func_arn: The ARN of the lambda function.165        :param env_vars: The environment variables for the lambda.166        :param lambda_cwd: The local directory containing the code for the lambda function.167        :return: ContainerInfo class containing the container name and default entry point.168        """169        with self.docker_container_lock:170            # Get the container name and id.171            container_name = self.get_container_name(func_arn)172            LOG.debug('Priming docker container: %s' % container_name)173            status = self.get_docker_container_status(func_arn)174            # Container is not running or doesn't exist....

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